.navigation {
  height:50px;
  background-color: #666;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 20px;
}
.navMenu{
  list-style: none;
}
.navMenu a{
  text-decoration: none;
  color: #ccc;
  display: block;
  height: 50px;
  line-height: 50px;
  padding: 0 10px;
}
.navMenu a:hover{
  color: #fff;
  background-color: #515458;
}
.navMenu-item{
  float: left;
  margin-left: 20px;

}
.search-box{
  position: relative;
  border-radius: 15px;
  border: 1px #666 solid;
  width: 200px;
  height: 30px;
}
.search-box :focus{
  transform: translateX(-100px);
}
.search-box:focus .search-icon{
  transform: translateX(-100px);
}

.search-icon{
  position: absolute;
  width: 20px;
  height: 20px;
  top: 2px;
  left: 7px;
}

.search-box input{
  outline: none;
  background: transparent;
  border: none;
  width: 170px;
  height: 30px;
  line-height: 30px;
  margin-left: 30px;
  color: #ccc;
}
.search-box input::-webkit-input-placeholder{
  color: #ccc;
}